package com.woniu.model.gh.utils;

import cn.hutool.jwt.JWTUtil;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * 生成token的工具类
 */
public class TokenUtil {

    /**
     * 产生token
     */
    public static String createToken(Long managerId, String signature, Long time, TimeUnit timeUnit,HttpServletRequest request) {
        Map<String, Object> payload = new HashMap<>();
        payload.put("managerId", managerId);
        if (timeUnit == TimeUnit.MINUTES){
            payload.put("exp", LocalDateTime.now().plusMinutes(time).format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
        }else if(timeUnit == TimeUnit.DAYS){
            payload.put("exp", LocalDateTime.now().plusDays(time).format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
        }
        //ip
        payload.put("requestIp",getRequestIP(request));
        String token = JWTUtil.createToken(payload, signature.getBytes());
        return token;
    }

    /**
     *得到用户的访问ip
     */
    public static String getRequestIP(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("X-Real-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        return ip;
    }
}
